Oberweis Asset Management INC/
Annual return '25
+12.8%
SPY '25
+17.7%
Alpha
-4.9ptsvs SPY
Invested
$3.7B
Holdings
179
Trades YTD
0
Performance · Fund vs SPY
Cumulative return · quarterly snapshotsCoverage 92%. 4 quarters of 2025 measured against SPY adj-close benchmark.
Top holdings · current snapshot
Source: 13F-HR01
$AAOI
Applied Optoelectronics Inc.
Q2 2025: Increased +36.3% (1.38M → 1.89M shares)
5.9%
02
$LITE
Lumentum Hldgs, Inc.
Q1 2026: New position (2.8k shares)
5.5%
03
$CRDO
Credo Technology Group
Q3 2025: Sold 15.1% (758.6k → 643.9k shares)
2.8%
04
$DOCN
DigitalOcean Holdings, Inc.
Q3 2025: Increased +22.2% (631.9k → 772.0k shares)
2.3%
05
$SN
SharkNinja, Inc.
Q2 2025: Sold 3.1% (500.2k → 484.6k shares)
1.9%
06
$NVMI
Nova Ltd.
Q2 2025: Increased +1.9% (111.0k → 113.1k shares)
1.8%
07
$DAN
Dana Inc.
Held since at least Q1 2024
1.6%
08
$BTSG
BrightSpring Health Services
Q3 2025: Increased +17.0% (775.8k → 908.0k shares)
1.5%
09
$MTSI
Macom Technology Solutions
Q3 2025: Sold 1.0% (179.5k → 177.8k shares)
1.4%
10
$RMBS
Rambus, Inc
Q1 2025: Increased +23.9% (409.4k → 507.4k shares)
1.3%
Recent trades · Last 90 days
No Form 4 / 13D / 13G trade events on file in the recent window. 13F filers report position snapshots quarterly rather than per-trade events, so this section is most useful for managers who also file Form 4 or 13D/G.
Convergence · Pattern Engine ships in v1.1
30-day windowIn development
Convergence participation lands with the Pattern Engine.
Once the Pattern Engine ships, this section will list every active convergence event this fund is named in — with the other named funds, the Congress members on the same name, and combined position size.
Source data: SEC EDGAR · 13F-HR filings · Performance through 2025-12-31 · Last refreshed 10:41 UTC.